(User manual)

Appendix A Troubleshooting 139
iPhone doesn’t support WMA, MPEG Layer 1, MPEG Layer 2 audio files, or audible.com
format 1.
If you have a song or video in your iTunes library that isn’t supported by iPhone, you
may be able to convert it to a format iPhone supports. See iTunes Help for more
information.
iTunes Stores
iTunes Wi-Fi Music Store Isn’t Available
To use the iTunes Wi-Fi Music Store for songs and albums, iPhone must join a Wi-Fi
network that is connected to the Internet. See “Connecting to the Internet” on page 30.
The iTunes Wi-Fi Music Store is not available in all countries.
Can’t Purchase Music or Applications
To purchase songs from the iTunes Wi-Fi Music Store (only available in some countries)
or applications from the App Store, you must have an iTunes Store account. Open
iTunes on your computer and choose Store > Create Account.
Removing the SIM Card
If you need to send your iPhone in for service or if you want to loan your iPhone to
someone and you still want to be able to make calls, you may be able to use the SIM
card inside iPhone with another GSM phone.
Remove the SIM card: Insert the end of the SIM eject tool (or a small paper clip) into
the hole on the SIM tray. Press firmly and push it straight in until the tray pops out.
SIM tray
SIM eject tool
SIM card
Backing Up iPhone
iTunes creates backups of settings, downloaded applications and data, and other
information on iPhone. You can use a backup to restore these items to your iPhone
after a software restore or to transfer the information to another iPhone.